Home / 93,457.85-128,970.17-53,170.75

Finding the Fourth Proportional to 93,457.85, 128,970.17 and 53,170.75

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Solution

The fourth proportional to 93,457.85, 128,970.17 and 53,170.75 is: 73,374.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,457.85 : 128,970.17 = 53,170.75 : x
  2. Step 2: Convert to fraction form
    93,457.85/128,970.17 = 53,170.75/x
  3. Step 3: Cross multiply
    93,457.85x = 128,970.17 × 53,170.75
  4. Step 4: Simplify right side
    93,457.85x = 6,857,440,334.91
  5. Step 5: Solve for x
    x = 6,857,440,334.91/93,457.85
  6. Step 6: Final answer
    x = 73,374.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.